There has been a lot of interest in Vitamin D deficiency recently and a certain lack of consensus on what to do about it.  We certainly do see rickets in our community which we treat with oral ergocalciferol which is notoriously difficult to get hold of in community pharmacies I know.  But full blown rickets is just the tip of the iceberg.  The Department of Health produced a leaflet in January 2010 (http://www.dh.gov.uk/prod_consum_dh/groups/dh_digitalassets/documents/digitalasset/dh_111302.pdf ) which is the nearest I can find to a national guideline dealing with the risk of Vitamin D deficiency.